Home / 10,999.91-16,500.54-4,426.09

Finding the Fourth Proportional to 10,999.91, 16,500.54 and 4,426.09

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Solution

The fourth proportional to 10,999.91, 16,500.54 and 4,426.09 is: 6,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.91 : 16,500.54 = 4,426.09 : x
  2. Step 2: Convert to fraction form
    10,999.91/16,500.54 = 4,426.09/x
  3. Step 3: Cross multiply
    10,999.91x = 16,500.54 × 4,426.09
  4. Step 4: Simplify right side
    10,999.91x = 73,032,875.09
  5. Step 5: Solve for x
    x = 73,032,875.09/10,999.91
  6. Step 6: Final answer
    x = 6,639.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.